Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
lang van » dang van, tang van, hoang van
duc manh » suc manh, duc anh, duc minh
lang xa » lang ha, dang xay
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((lang xa) or (lang van)) hoi. hieu ve pham duc manh hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang xa) OR (lang van)) hoi. hieu ve pham duc manh hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((lang xa) or (lang van)) hoi. hieu ve pham duc manh hanh vi cua tre*.